1. The importance of prenatal check-up During pregnancy, prenatal check-up is very important. It can help doctors detect problems in pregnant women and fetuses in time and take corresponding measures to protect the health of pregnant women and fetuses. Prenatal examination mainly includes physical examination, laboratory examination, B-ultrasound examination, etc. 2. Prenatal physical examination Prenatal physical examination mainly determines whether there are abnormalities in pregnant women by observing their physical condition. The doctor will conduct blood pressure measurement, abdominal palpation and other examinations on pregnant women, and also check whether the pregnant woman has a history of allergies, infectious diseases, etc. 3. Prenatal laboratory examination Prenatal laboratory examination can